切换窗口以及敲击或移动鼠标将导致该窗口的焦点指示器从0变为1。
Switching between Windows and typing or moving the mouse will cause the focus indicator for that window to switch from 0 to 1.
一个名叫“桑普卡车”的小装置会敲击地面，引起的细微地面震动又再传输到无线传感器上。
They are designed to pick up the echo of the seismic vibrations created by contraptions called "thumper trucks" pounding the ground.
正当你通过SSH登录到远程服务器上，兴高采烈地敲击着键盘。
You are logged into your remote server via SSH and happily plucking along at your keyboard and then it happens.
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